By continually moving the opening along the bottom of the hopper, cargo is constantly shifted, eliminating the compacting, bridging and tunneling problems associated with stationary opening.

The Athena lunar mission is set to deploy the 'Gracie' hopper to explore shadowed craters near the Moon's south pole.

In its letter, an Indian Navy officer said, "Commissioning of INS Surat is a tribute to the rich maritime traditions of the ...

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